I'm sure some of these have been posted, and may not be new to everyone. I've only been playing with iOS 7 for about an hour and here are a couple things I noticed.
I'm not sure if an image of this was posted, but the "New" ribbon has been replaced with the familiar blue dot, used in apps such as videos and mail.
Don't know if the new ringer was posted, I like it.
Also, I was going to post a picture of how cool inverted colors look with the new UI, however you can't take a screen shot of inverted colors. When I do a screenshot anywhere it looks normal. That's more a bug, not a feature.
It appears in iOS 7 the play button does not appear in the status bar anymore. Not sure if they'll add it later, but I was a fan of that.
I'm not sure if an image of this was posted, but the "New" ribbon has been replaced with the familiar blue dot, used in apps such as videos and mail.

Don't know if the new ringer was posted, I like it.

Also, I was going to post a picture of how cool inverted colors look with the new UI, however you can't take a screen shot of inverted colors. When I do a screenshot anywhere it looks normal. That's more a bug, not a feature.
It appears in iOS 7 the play button does not appear in the status bar anymore. Not sure if they'll add it later, but I was a fan of that.